France, Italy and the United States have recalled their refuelling aircraft in preparation for potential deployment in Syria.
The move was made due to a potential escalation in air operations in Syria in response to an alleged chemical weapons attack in Douma.
According to the Reformatisch Dagblad, the European Air Transport Command in Eindhoven has confirmed that aircraft used for in-air refuelling have had to withdraw from the Frisian Flag war games.
The planes were three of five refuelling aircraft being used in the seven-nation military exercise. The United States recalled their KC-135R Stratotanker, France recalled their C-135 Stratolifter and Italy recalled their KC767A.
There are still two in-flight fuelling aircraft available for the jets and other planes involved in the Frisian Flag exercise, which will continue through next week.